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Finding the Third Proportional to 131,397 and 202,929

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Solution

The third proportional to 131,397 and 202,929 is: 313,402.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,397 : 202,929 = 202,929 : x
  2. Step 2: Convert to fraction form
    131,397/202,929 = 202,929/x
  3. Step 3: Cross multiply
    131,397x = 202,929 × 202,929
  4. Step 4: Simplify right side
    131,397x = 41,180,179,041
  5. Step 5: Solve for x
    x = 41,180,179,041/131,397
  6. Step 6: Final answer
    x = 313,402.73

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.